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Re: Best practise for upgrade of 24GB+ database

From: "Nicholson, Brad (Toronto, ON, CA)" <bnicholson(at)hp(dot)com>
To: francis picabia <fpicabia(at)gmail(dot)com>
Cc: "pgsql-admin(at)postgresql(dot)org" <pgsql-admin(at)postgresql(dot)org>
Subject: Re: Best practise for upgrade of 24GB+ database
Date: 2012-01-23 13:10:26
Message-ID: EC55DC235432104F8255702A8D7344D925739880@G9W0741.americas.hpqcorp.net (view raw or flat)
Thread:
Lists: pgsql-admin
> -----Original Message-----
> From: francis picabia [mailto:fpicabia(at)gmail(dot)com]
> Sent: Friday, January 20, 2012 3:39 PM
> To: Nicholson, Brad (Toronto, ON, CA)
> Cc: pgsql-admin(at)postgresql(dot)org
> Subject: Re: [ADMIN] Best practise for upgrade of 24GB+ database
> > In the past I've used Slony to upgrade much larger database clusters
> than yours with minimal down time (I'm talking seconds for the actual
> master switch).  You set up a new replica on the new version and then
> move the master from old to new.  No need to explicitly resync
> afterwards.
> 
> That's great information.  9.0 is introducing streaming replication,
> so that is another option I'll look into.

Streaming rep will not help you here as you cannot replicated between versions with it.  Slony allows replication to a new version.

Brad.

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